Uchuu de La Ta Ta (宇宙でLa Ta Ta; La Ta Ta in the Universe) is Taiyo to Ciscomoon's third single. It was released on July 28, 1999. The title track was used as a theme song for the Ellese commercials. The single reached #9 on the weekly Oricon charts and charted for five weeks. It sold 34,700 copies in its first week and 73,680 copies total. The c/w tracks are remixes of the group's second single Gatamekira.